Accessibility
Web accessibility
Web accessibility is the practice of building websites that people with visual, hearing, motor, or cognitive disabilities can use, including people who rely on screen readers, keyboards, or zoom.
Accessible sites use proper HTML structure, readable color contrast, descriptive link text, labeled form fields, and alt text for meaningful images. Every interactive element should work with a keyboard alone.
Accessibility is often discussed in terms of ADA compliance in the United States, and WCAG is the technical standard used to measure it. Accessible markup also tends to help SEO and AEO, because the same clear structure that helps a screen reader helps a search engine or AI tool understand the page.